board/freescale/mx7ulp_evk/mx7ulp_evk.c

   1 /*
   2  * Copyright (C) 2016 Freescale Semiconductor, Inc.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <asm/io.h>
   9 #include <asm/arch/sys_proto.h>
  10 #include <asm/arch/mx7ulp-pins.h>
  11 #include <asm/arch/iomux.h>
  12
  13 DECLARE_GLOBAL_DATA_PTR;
  14
  15 #define UART_PAD_CTRL   (PAD_CTL_PUS_UP)
  16
  17 int dram_init(void)
  18 {
  19         gd->ram_size = PHYS_SDRAM_SIZE;
  20
  21         return 0;
  22 }
  23
  24 static iomux_cfg_t const lpuart4_pads[] = {
  25         MX7ULP_PAD_PTC3__LPUART4_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  26         MX7ULP_PAD_PTC2__LPUART4_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  27 };
  28
  29 static void setup_iomux_uart(void)
  30 {
  31         mx7ulp_iomux_setup_multiple_pads(lpuart4_pads,
  32                                          ARRAY_SIZE(lpuart4_pads));
  33 }
  34
  35 int board_early_init_f(void)
  36 {
  37         setup_iomux_uart();
  38
  39         return 0;
  40 }
  41
  42 int board_init(void)
  43 {
  44         /* address of boot parameters */
  45         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
  46
  47         return 0;
  48 }